Surgical apparatus



(No Model.)

W. L. HBNDRICK. SURGICAL APPARATUS.

UNITED ASTATES PATENT OFFICE.

WILLIAM L. IIENDRICK, OF BOSTON, MASSACHUSETTS.

SURGICAL APPARATUS.

SPECIFICATION forming part of Letters Patent No. 432,614, dated July 22,1890.

Y Application filed March 18, 1890. Serial No. 344,303. (No model.)

To all whom it may concern.:

Be it known that I, WILLIAM L. HENDEIcK, a citizenof the United States,residing at Boston, in the county of Suffolk and State of Massachusetts,have invented certain new and useful Improvements in Surgical Apparatus;and I do declare the following to be a full, clear,

^ and eXact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon,which form a part of this specification. Thisinvention has for its object the construction of an apparatus especiallyadapted to be used by surgeons in such operations Where it is necessaryor advantageous to have a practical operative microscope concentrated 0nthe place to be operated upon-such as the interior of the mouth, throat,vagina, the.

The invention consists in the special arrangement of a mirror andlenses, so that the mirror may be placed in such a position as to throwthe light concentrated upon it by one of the lenses on the particularplace to be examined, and the other lens to be used as amagnifying-glass to examinethe place to be operated upon directly or theimage reflected in the mirror, and, further, to the means of supportingand adjusting the mirror and lenses, and to an adjustable table adaptedto revolve and hold the tools of the operator.

The invention further relates to the novel construction and combinationof parts, as will be hereinafter fully set forth, pointed out in theclaims hereto appended, and illustrated in the accompanying drawings.

In the accompanying drawings, in which similar letters of referencedesignate corresponding parts, 4Figure l is a side elevation of theapparatus. Fig. 2 is a vertical section through the lower standard andthe cap on the top of the same, showing the device for securing theupper standard in place when adj usted. Fig. 3 is a detail view showingthe double friction-collar used in connecting several of the variousparts of the apparatus.

Referring to the drawings by letter, A designates a hollow standardprovided with a suitable base B. In this hollow standard slides astandard C, adj ustablyheld therein. A cap D, having an aperture in itstop for the passage of the upper standard, is screwed to the top of thelower standard. Around the adjustable standard C, just below the cap, isa sleeve E, having its lower end fianged. The purpose of this flange isto allow the insertion of screws through the sides of the standard A toattach the sleeve firmly to the same. Any other suitable device may beused for retaining the sleeve in place and may be substituted for theflange and screws. The upper end of this sleeve is slotted for thepurpose which will be explained farther on.

From the under side of the cap D a band F projects, which has its outerperiphery at right angles to the top of the cap and its inner peripheryat a slight angle to the outer, so as to be wedge-shaped incross-section. This wedge-shaped band enters the space between the topof the sleeve E and the stationary standard. lVhen the sliding standardhas been adjusted to the desired height, the cap is screwed down and thewedge forced betweenthe stationary standard and slotted top of thesleeve, which is compressed and firmly bound to the sliding standard,and thereby holding it in place. The slotted top of the sleeve allows itto be easily compressed.

On the top of the adjustable standard is a cap a, having its upper endbifurcated. It is slotted vertically on one side, and has the lugs cprovided with a set-screw for securing the cap upon the standard.Between the arms of the bifurcated end of the cap is pivoted the sleeveb, through which the arm II, earrying the supports for the lenses andmirror passes, and is held adj ustably therein by the setscrew b.

To provide a vertical adjustment of the arm II, the telescopic brace Zis provided. It is secured at one end to the adjustable standard C bythe clamp-collare', and at the otherend to the arm H by the clamp-collard. A setscrew t' is provided, so that the brace may be secure in itsadjusted position.

In the arm II telescopes the extension-arm I-I, held therein by theset-screw d', passing through suitable lugs formed on the edges of thesplit formed in the end of the arm H. Secured on the eXtensionnarm, nearits inner end, by the clamp-collars e, (see Fig. 3,) is the T-shapedjoint K. Through the sleeve K of this joint, and adjustably securedtherein,

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passes the arm K", having its outer end bifurcated, which, with aset-screw, forms a clamp-collar. In this clamp-collar is secured one endof the angle-support I which has its outer end formed into aclamp-collar similar to that on the end of the arm K", and carries thehandle L of the mirror M. The handle of the mirror is long enough toallow considerable adjustment of the same. Farther out ontheextension-arm H' are secured, by clamp-collars e and T-shaped joints,the supports N and P for the lenses N' and P', respectively. Thesesupports are similar to that of the mirror, and therefore need not bedescribed in detail.

The preferred kind of lenses to be used are plane concave, so that thefocus may be lengthened much more so than when convex -ones are usedwithout .diminishing the magnifying and light-concentrating power. Thelenses are so fastened as to be easilyremoved and replaced by others,when it is so desired.

The magnifying-lens N is provided with a hood S to exclude the reflectedlight from a window or any other source. The hood also serves to keepthe eye of the operator the proper distance from the lens.

Vhen it is desired to examine any of the parts before mentioned, as themouth, eye, throat, &c., the patient is placed in position in a chair orother suitable support, and the apparatus placed back of him, so thatthe eX- tension-arm can be brought over either shoulder, as would bemost convenient to the operator. The mirror and lenses are then broughtinto position. The mirror is so placed that it will throw the lightconcentrated upon it by the lens used for that purpose upon the place tobe examined7 or so that the image reflected upon it may be examined bythe magnifying-lens when brought to focus upon the mirror or the placetobe operated upon.

The manner in which the different parts are connected allows a greatvariety of adjustments, which at the same time securely hold theapparatus in its adjusted posit-ions.

Having described my invention, what I claim, and desire to secure byLett-ers Patent, is-

1. As an improvement in surgical apparatus, the hollow standard A,supported upon a suitable base and having a slotted sleeve E within itsupper end, the adjustable standard C, telescoping with the lowerstandard, the cap D, and thewedge F, projecting from the under side ofthe cap, substantially as and for the purpose specified.

2. As an improvement in surgical apparatus, the hollow standard A,supported by a suitable base, the adjustable standard C, the arm H,pivoted to the top of said adjustable standard, the extension-arm H',telescoping with the arm H, the supports for the mirror and lensescarried by said extension-arm, and the telescopic brace I, secured atits ends to the arm H and the adjustable standard C, respectively,substantially as and for the purpose specified.

3. As an improvement in surgical apparatus of the described class, thecombination of the hollow standard A, provided with a suitable base, theadjustable standard C, telescoping with said standard A and having itsupper end bifurcated, the arm H, pivoted at one end between the arms ofthe bifurcated end of the standard C, the telescopic brace I, secured atits ends to the standard C and the arm H, respectively, theextension-arm l-l', telescoping with the arm H, and-the supports for thelenses and mirror adj ustably carried on the extension-arm,substantially as and for the purpose specified.

4:. The combination of the standard A, supported bya suitable base, theadjustable standand C, the arm H, pivoted to the top of said adjustablestandard, the extension-arm H', telescoping with the arm H, the supportsfor the mirror and the lenses carried by T-shaped joints secured to theextension-arm, and the brace I, secured at its ends to the arm H and theadjustable standard C, respectively, substantially as and for thepurpose speciied.

5. The combination of the hollow standard A, supported by a suitablebase, the adjustable standard C, the arm H, pivoted to the top of saidadjustable standard, the brace I, secured at its ends to the standard Cand the arm H, respectively, the extension-arm H', telescoping with thearm H, the T-shaped connections K', secured to the extension-arm byclamp-collars, and the angle-supports K'" for the mirror and lensescarried by the arms sliding in the T-shaped connections, substantiallyas and for the purpose specified.

In testimony whereof I aix my signature in presence of two witnesses.

WILLIAM L. HENDRICK.

Witnesses:

EUGENE H. MooRE, EDWARD E. PARKER.

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